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  1. #1
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    Mechanical 6800 Rotation Adjustment Screw

    When did this show up? Why do some mechanical 6800 braze-on front derailleurs have it, and some don't?

  2. #2
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    AFAIK all shimano 11sp have this.
    105 5800
    Ultegra 6800
    Dura Ace 9100
    I own and all have it

  3. #3
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    Well damn. evan326, you're right. I had looked at my 6800, and didn't see it, read your reply... went back to look closer (with my #%$&ing glasses on) and yep - it's there. I've installed three 6800 front derailleurs and missed it each time. That's pretty bad.

  4. #4
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    Happens to the best of us.

  5. #5
    'brifter' is a lame word.
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    RTFM. And you can only see/adjust it in the small ring position.
    I work for some bike racers
    I've got some bikes, some guns,
    and a bunch of skateboards

  6. #6
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    Quote Originally Posted by cxwrench View Post
    RTFM. And you can only see/adjust it in the small ring position.
    You have no idea how right you are... I was helping a friend who'd never installed a derailleur before. He's new to wrenching (not riding) but learning fast. I've been building bikes for 40+ years so, why would I have to read a manual for a simple derailleur install. HE pointed out that screw... 'cause he'd read the manual. Yep. RTFM.

  7. #7
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    There are other, perhaps better reasons to read the manual for that particular derailleur. Not the least of which is the cable routing at the pin/cinch bolt.

    When set up properly, it's a fine, smooth shifting derailleur. If it's not, it's a hot mess.

  8. #8
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    And on some bikes that little screw only hits air. Trek Domane 600 comes to mind because of the seat tube shaping. So it cannot always be used.

    Anyway, it is nice when it can be used.

    Don't forget to use the little stick on piece of metal for it to press against.
    Sometimes folks forget to stick that on the frame.

  9. #9
    'brifter' is a lame word.
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    Quote Originally Posted by OldZaskar View Post
    You have no idea how right you are... I was helping a friend who'd never installed a derailleur before. He's new to wrenching (not riding) but learning fast. I've been building bikes for 40+ years so, why would I have to read a manual for a simple derailleur install. HE pointed out that screw... 'cause he'd read the manual. Yep. RTFM.
    Don't ya love getting schooled like that? One of our guys that's not a full time mechanic built a bike w/ the new 9100 D/A the other and was raving about how well the new front derailleur shifted. I took a look at it and said 'It's even better when you set it up correctly'...I had him watch the install video and heard him say 'ooooohhhh' at least 3 times!
    I work for some bike racers
    I've got some bikes, some guns,
    and a bunch of skateboards

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